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On an average sized home this can add up to something like 2,500-3,000 screws or 3,000 potential leaks down the road. When considering the cost of standing seam versus other roof systems, understand the implications of exposed screws, maintenance over time, and how well a roof keeps water out.Įxposed Screws: Metal roofing that screws down requires on average 70 exposed screws per sq. It’s important to understand the life cycle, where a steel roof with an aluminum-zinc alloy coating can easily last up to 100 years. It is also important to consider how the standing seam relates to other materials within a building envelope to avoid unforeseen consequences.Ī standing seam metal roof usually costs more than other types of metal roofing. Consult with your manufacturer to establish which standing seam product is most appropriate for the climate in which your project is to be located.įire resistance: Standing seam metal is generally very resistant to fires, but it is still advisable to consult with manufacturers on the fire-resistance rating requirements of standing seam roofs.
#Standings seam metal roof attachment options manual#
The guidance given in chapter 30 of the ASCE 7-10: Minimum Design Loads for Buildings manual can be used to determine the natural wind actions to be considered during the design of cladding.Įxpansion & Contraction: Some metals contract and expand with changes in temperature, humidity and pressure, and if the wrong material is specified, this can lead to permanent building damage. Wind Action: Building cladding systems are required to sustain wind actions and transfer them to the main building structure. Most standing seam metal roofing is given color with kynar paint that last 35 years. Not only is the metal itself thicker, 24 gauge compared to lighter grade metals 29 gauge, the paint is also much better. The metal and its alloys are lightweight, durable, corrosion resistant and recyclable.ĭurability: Properly installed standing seam metal roofs will last 2-3 times longer than lighter gauge, screw down metal roofing. Modern aluminum alloys can also support the weight of heavy glass spans, thus maximizing the building’s capability for using natural sunlight. It is naturally resistant to rusting or blistering, making it a popular cladding choice for projects. Choice of material is influenced by climate, aesthetic and budget the following are among the most commonly specified options:Īluminum: Aluminum possesses an excellent strength-to-weight ratio, meaning aluminum façade systems can be less bulky than those for steel panels. Standing seam metal roof systems are available in different metals including aluminum, aluminum/zinc coated alloy, coated steel and copper. Optimal materials for standing seam metal roofs are those that provide durability, corrosion resistance and longevity. Lighter colors provide an added benefit of being cooler as they resist solar heat gain. Standing seam metal roofs can be crafted in a variety of colors and materials. As a durable choice for roofing, we’re exploring the systems, materials and performance of standing seam roofs. These roofs require minimal maintenance and provide both extreme resistance to high winds and a high fire rating.
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The seams run vertically and are created by folding and crimping the edges between the panels. The term standing seam comes from the connections between the metal panels that are raised. Many options are available today, including aluminum, copper or aluminum-zinc alloy coated steel. Modern standing seam roofs as we know them were developed in the 1960s and use metal as the roofing material instead of asphalt, tile or slate. From the Romans who used copper as a roof covering for the Pantheon to alloyed metal roofs in European medieval architecture, these metallic structures are characterized by high resistance, impermeability and longevity.
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Metal roofs have been used throughout history to stand the test of time. Want to earn global recognition for your projects? Sign up to be notified when the 11th Annual A+Awards program launches. Architizer is thrilled to announce the winners of the 10th Annual A+Awards.